Screen?

Hello!
What's the designation for this type of screen? And by the way, is there some site with a glossary of "boat part" terms?

 

That's little more than a stylized "eyebrow" on the coach roof. It may look aerodynamic, but in fact, it's not especially so, dragging around a huge wall of negative pressure, disturbed air just behind it underway (speed dependant of course). There are several sites that have common boat part and nautical terms available. Have you preformed a search?

 

So, "eyebrow" is the common name for this thing?
Yes, there are a lot of information if you want the explanation for a specific word, but not so much when it's the other way around.
You know the part but not the name. English is not my native language.

 

That particular piece could have several names, though I've used eyebrow for some decades.

 

I have seen and used the word 'facia'.